
    <nz-checkbox-group [(ngModel)]="checkOptionsOne" (ngModelChange)="log(checkOptionsOne)"></nz-checkbox-group>
    <br>
    <br>
    <nz-checkbox-group [(ngModel)]="checkOptionsTwo" (ngModelChange)="log(checkOptionsTwo)"></nz-checkbox-group>
    <br>
    <br>
    <nz-checkbox-group [(ngModel)]="checkOptionsThree" (ngModelChange)="log(checkOptionsThree)"></nz-checkbox-group>
  